You make a solid point but to be honest, I don't think there much of a connection between DMC1 and 4 either. Their Dante's are even radically different despite having Trish there imho. I feel that each Dante is made without the previous incarnation in mind aside from 3 and 4.
I'll be honest, I'm not all familiar with DMC2 Dante hate. Rather that after DMC3 fans consider that Dante as the "definitive" so the word emo gets used a lot for the first Dante and the word poser for the second. It's pretty wacky.
Now onto your question. Nothing too ground breaking happened in DMC2 besides Lucia and Dante's location. Fitting Nero would require some pacing. Honestly the have tons of material to work with. DMC2 shows us Arius was a scientist.
I'll be honest, I'm not all familiar with DMC2 Dante hate. Rather that after DMC3 fans consider that Dante as the "definitive" so the word emo gets used a lot for the first Dante and the word poser for the second. It's pretty wacky.
Now onto your question. Nothing too ground breaking happened in DMC2 besides Lucia and Dante's location. Fitting Nero would require some pacing. Honestly the have tons of material to work with. DMC2 shows us Arius was a scientist.